I successfully fitted a new super-drive, which although buying the Sony OPTIARC DVD RW AD-5630A replacement, I actually ended up with the Panasonic (MATSHITADVD-RAM UJ-846S) drive..!!........... I got my drive from here: http://www.ecrater.co.uk/p/11642957/repl...

I did have to remove the two small locating lugs on the front of the caddy and the other thing I have found is that using this drive with the caddy for the Sony Optiarc, it doesn't situate the drive closer enough to the outer edge of the imac, which does cause problems with activating the drive so it pulls the CD/DVD into the machine. I now have to just slightly touch the edge of the inserted CD/DVD with a credit-card to get the drive to activate..!!

The caddy that holds the superdrive in place may or may not fit the drive without modification. There are two small bumps at the front of the caddy, where the superdrive open slot would sit flush. depending on the drive/caddy you may need to snap these off for the drive to fit correctly, otherwise it will push the top of the superdrive down and discs will not be accepted.

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